Is the Carboy Water in Our Houses Unhealthy?

After the photo of a dirty hose in a closed carboy became viral in the past days, the issue of whether the carboys are healthy came to the fore again. Opinions of an employee and different scientists from within the sector will enlighten you on this subject.

Which water is healthier; carboy, purification, pet bottle, faucet? Various experts have different opinions on the answer to this question. According to experts, all of them actually have risks, but with a few research and precautions, it is up to you to find the healthiest way.

We wish we could all put our mouths on the tap and drink water, as in the poem of Nazım Hikmet, but in today’s world this has become a dream. After reading the content, the carboy in your home is now It won’t look as innocent as it used to be.

Recently, a citizen who bought a bottle of water came across this scene.

carboy is unhealthy

As a result of a dirty hose in the carboy of the brand “Kalabak”, which was filled by Eskişehir Metropolitan Municipality Water and Sewerage Administration (ESKİ), Lawyer Pınar Turhanoğlu Güçlüyener stated that this situation not the first time, He had previously stated that foreign substances had been found and that even 10-year-old carboys were used, while the usage date should have been 5 years at the most.

After this incident, it was discussed whether carboys are healthy or not, and a writer from the industry, Ekşi Sözlük, claimed that carboys are dangerous.


According to the article shared in Ekşi Sözlük; An empty carboy costs around 60 TL and water factories take them as deposit from their customers or charge this cost to regional dealers. Carboys do not belong to the factory, they belong to dealers or end users. That is, in the system all carboys are owned, It is not stock at the factory.

As such; The regional dealer collects the empty carboys from the customers and sends them to the factory, and when the empty ones are emptied at the factory, they cannot load the full ones immediately, because the packages belong to the dealer and they will wait for their own empty bottles to be filled and then load them and leave.

In the meantime, according to the speed of the season, which is the highest season in summer, used carboys are unloaded from the trucks, and these carboys are delivered to one worker. visual and nasal is put to a test.

carboy worker

If this worker approves these demijohns, they are shaken, refilled and capped. However, if this worker does not approve, the carboys are given to the washing line with caustic and hot water (as it prolongs the process). not preferred in high season washing process).

According to the claimant working in the sector; There may even be those who put diesel oil in carboys and carry them, those who put buttermilk/lemonade in the Mevlüt, and those who use it as a hookah bottle.

carboy hookah

In addition, these demijohns are carried with their mouths open between their legs on motorcycles, they are kept on the sidelines in tube cars, after being exposed to all kinds of filth shaken and filled. Moreover, these problems are not seen in suburban factories, but even in big factories that will be in the top 3 of Turkey.

Polycarbonate raw material used in carboys, when exposed to scratches chemicals that can cause carcinogenic effects migrate to water. While demijohns should be destroyed after a maximum of 5 rounds, it is possible to see the packages that have been returning for years in the system (You can check the production date engraved on the plastic under the carboy in your home).

Erciyes University Engineering Faculty Environmental Engineering Department Head Prof. Dr. İbrahim Peker says that pumps that pump water from carboys can harbor bacteria that cause infectious diseases such as hepatitis viruses, tuberculosis, diarrhea, typhoid fever, and dysentery.

su bacteria

Stating that there are risks to health due to both unconscious use and non-responsible producers, Peker said, “The use of carboy water is basically There are 3 risks. These are bacterial pollution caused by carboy pumps, chemical pollution originating from carboy raw materials and pollution that may occur during production,” he says.

Pump-induced impurities are usually caused by unconscious consumption. The pumps, which pump the water in the carboys with the help of the air they take from outside, are always open to bacteriological pollution because they create a humid and open environment. For this reason, carboy pumps should be disinfected by cleaning with chlorinated water once a week and bacteria that may occur in the pumps should be prevented.

Because bacterial biofilms (slippery layer) that may occur in pumps, hepatitis viruses, tuberculosis, diarrhea, typhoid, dysentery contain bacteria that cause infectious diseases, such as If the pumps are not cleanable, they must be changed once a year. Charged pumps can be preferred instead of pumps that take the air and fill it into the carboy.

A second risk factor is chemical pollution originating from the raw materials of carboys.

water chemical

Chemicals used as carboy raw material ”fosgen” A chemical gas that is quite poisonous and used in wars appears. This toxic chemical can mix with water from carboys whose surfaces are worn out and which are kept in water for a long time. Therefore, buying undamaged and undamaged demijohns is recommended after approximately 50 uses. must be destroyed.

The third risk factor is that producers produce water under unhealthy conditions.

water production

Some of the carboy waters sold in the market consist of processed waters and some of them consist of natural spring waters. that may occur during the filling of spring water into carboys. unhygienic conditions will cause bacteriological pollution. In addition, the conditions under which water is processed and under what conditions it is stored and delivered to the end user is a controversial issue.

When buying carboy water, whether the companies selling these waters are licensed by the Ministry of Health, whether there are safety tapes on the carboys, whether there are labels on the type of water, production address, filling and expiration date, the processes applied and the parameters it has, whether the parameters on these labels are drinking water whether it complies with the standards should definitely be viewed.

Care should be taken to clean the pumps used in the carboys and to keep the carboys in dry, sunlight-free and clean places.

carboy and tube

Otherwise, it will cause the growth of harmful microorganisms. It will affect the waters odorous substances should not be near the carboy, most importantly, care should be taken to take enough water to be used and to prefer ready-made water in packages that can be consumed in a week. When the cap of the water bottle is opened, it should be consumed within one day, and carboys should be consumed as soon as possible when the caps are opened.

Carboys must reach the consumer in closed vehicles. Not to be carried side by side with kitchen tubes also quite important. The Health and Food Safety Movement reminded that, as a result of an investigation, it is not necessary to even take a shower in the water sold by Damla, Erikli, Nestle and many other famous companies.

So, is it healthier to use glass carboys instead of plastic ones?

glass carboy

It may not have carcinogenic effects, but they are also mentioned above. “do not wash” can walk through.

Does it make sense to abandon the carboy and turn to disposable PET bottles?

Plastic bottle

Migration analyzes of PET bottles are carried out regularly and it is examined whether any substance passes into the water. All disposable packaging is untouched and produced sterile. It has been approved to be safe for contact with food and drink in many parts of the world, including the United States and the European Union.

Although it is more hygienic than carboy filling; However, that doesn’t mean he’s completely innocent. Many scientific papers report that the reuse of water bottles is due to certain chemicals released from plastic for various reasons. Claims it can cause cancer.

One study found that 93 percent of newly opened plastic bottles contained some form of microplastic contamination.


As these bottles are not built for durability, they can be easily damaged and they can crack. The plastic used in bottle making is subject to cracking because it is a very thin and therefore weaker structure. These cracks can harbor bacteria, which can lead to health problems.

BPA is a chemical that causes concern. It can disrupt the endocrine system and potentially cause reproductive and metabolic problems. BPA is not used to make PET bottles, but can be found in harder plastics such as polycarbonate (in demijohns). A different chemical as a catalyst for PET production antimony used. Antimony is not carcinogenic if ingested, but can cause vomiting and diarrhea. Most PET bottles are made from polyethylene terephthalate.

PET bottles pose a danger to nature as they are disposable.

bottle plastic

You can recycle these packages by separating them. In every package as of January 2022 deposit and you will be able to get your money back when you recycle it. However, it is not a highly recommended option as the effect will be partial.

In addition, PET bottles are usually in front of the market. for being kept in the sun for hours. can produce harmful results. There is some concern that the chemical leaching described above occurs more frequently at higher temperatures, drinking from a bottle you left in the car on a hot day can cause serious health problems.

If the results of the carboy and PET options have caused you to worry, let’s see if the purification devices are healthy:


The purification devices, with prices of 1000 TL, provide drinking water by connecting to your faucet. It is the most practical method compared to all other options, but it also has disadvantages. The treatment water passes the water through the membrane with reverse osmosis technology and retains all the impurities and minerals in it. You get pure water.

Post carbon filters etc. installed on the final output line. even the water you will get from drinking water does not provide minerals, It is not good to drink pure water. In addition, these devices produce by throwing 5-7 units of water into 1 unit of water, that is, It is bad for nature.

So is there no completely healthy water? There is, but it can be a little troublesome: Spring water

spring water

Of course, if you can find it and you want to put up with some trouble. You can go to a rural area and fill it with spring water yourself. Healthier and tastier You will have a water. Of course, it will not come to your feet, you will have a weight to carry and you will have to endure the gas money. Still worth it!

Actually, everything aside, it should be questioned why we can’t drink water from our taps at home. It is our duty to force the municipalities to run clean water from the taps.

Tap water

In summary; If you spit down there is a beard, if you spit up there is a mustache. The choice is entirely yours.

leyla and mecnun carboy
Resources: Health and Food Safety Movement, Erciyes University Engineering Faculty Environmental Engineering Department Head Prof. Dr. İbrahim Peker, Science Alert, Sour Dictionary, İHA